A friend of a surd asks him 'How many rotis (bread) you can eat on empty stomach? The surd replies after a while 'three' , the friend says 'You fool, after you eat one your stomach will no more be empty, how can you eat more than one on empty stomach'.
Our surd wants to try the same prank on his wife. On reaching home , he asks his wife 'aji, aap empty stomach pe kitne roti kha sakthi hai?(how many rotis you can eat on sempty stomach)" she says 'four'. Our surd scratches his head and says 'tho phir dost se poochna padega'(I will have to get the answer for this from my friend ).